499646 has 16 divisors (see below), whose sum is σ = 868320. Its totient is φ = 211200.

The previous prime is 499637. The next prime is 499649. The reversal of 499646 is 646994.

It is a super-2 number, since 2×499646² = 499292250632, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046 + ... + 1446.

It is an arithmetic number, because the mean of its divisors is an integer number (54270).

2⁴⁹⁹⁶⁴⁶ is an apocalyptic number.

499646 is a deficient number, since it is larger than the sum of its proper divisors (368674).

499646 is a wasteful number, since it uses less digits than its factorization.

499646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499.

The product of its digits is 46656, while the sum is 38.

The square root of 499646 is about 706.8564210644. The cubic root of 499646 is about 79.3513168437.

The spelling of 499646 in words is "four hundred ninety-nine thousand, six hundred forty-six".